Don't overlook the fact that all three of these jobs are hard to get. They're hard to get for a reason and each one possesses a certain amount of "suck" as well. But the "suck" is also the reward, if that makes sense. I only mention it because you're going to be working hard no matter which one you choose...no path of least resistance there.
I don't know anything about LEA/FBI. I'm sure there a few that can chime in regarding that path. Ignore the CIA discussion.
Pilot vs NFO. I can comment here, but my POV has changed significantly over the years. I enjoyed my time as a pilot, but it didn't go the way I thought it would. When I signed up I figured I'd be a Blue Angel and then onto the majors for a lifetime of exotic travel and money falling out of my pockets. As it turned out, I became a H-46 Helo-Bubba and that's about as far removed from the Blue Angels as you'll ever find. The cool thing is, flying Helos was awesome, my peer group was still exceptional (by and large...there's turds in every community), and the missions were great. 9/11 killed my airline dream and by the time it revitalized my civilian career was booming and my income was about 3X a senior airline captain anyway so I wasn't going to switch career gears again. None of the paths your talking about are prosperous. Which is to say, you'll be comfortable, but never rich. That's okay...the rewards for each of your options are unique to themselves and will still be worth your while.
Pilot vs NFO...I was pilot or bust when I signed up. I put Pilot on line number one and N/A on lines two and three. Just my mentality. I have a cousin who's in Super Hornets right now as an NFO. He started out as a Pilot and switched NFO because he didn't want the extra years on his commitment. My advice to him was to stay pilot if only for the follow on aviation career opportunities, but he couldn't get past it as he was already thinking about post Navy life the day after he got his commission. I told him that was totally fucked up(not the NFO part, the looking beyond the navy part) and he better focus on the first career that's immediately in front of him instead of the second one that isn't even a thought yet. Also, I told him don't sell the Navy short as you may wind up loving it. And that's exactly what happened. He loves the Navy and he loves being an NFO. He called me a couple years later and told me I was right. Yeah...no shit I'm right.
Anyway, you're going to be fine no matter which way you go. I read lots of detective novels and I think the LEA route would be pretty cool except you're almost always dealing with the shittiest part of humanity.